US 11,942,251 B2
Reactor
Takehito Kobayashi, Yokkaichi (JP); Seiji Shitama, Yokkaichi (JP); and Kohei Yoshikawa, Yokkaichi (JP)
Assigned to AutoNetworks Technologies, Ltd., Yokkaichi (JP); Sumitomo Wiring Systems, Ltd., Yokkaichi (JP); and Sumitomo Electric Industries, Ltd., Osaka (JP)
Appl. No. 15/733,945
Filed by AutoNetworks Technologies, Ltd., Yokkaichi (JP); Sumitomo Wiring Systems, Ltd., Yokkaichi (JP); and Sumitomo Electric Industries, Ltd., Osaka (JP)
PCT Filed May 17, 2019, PCT No. PCT/JP2019/019764
§ 371(c)(1), (2) Date Dec. 1, 2020,
PCT Pub. No. WO2019/230458, PCT Pub. Date Dec. 5, 2019.
Claims priority of application No. 2018-106543 (JP), filed on Jun. 1, 2018.
Prior Publication US 2021/0233694 A1, Jul. 29, 2021
Int. Cl. H01F 27/06 (2006.01); H01F 27/02 (2006.01); H01F 27/24 (2006.01); H01F 27/30 (2006.01); H01F 27/32 (2006.01); H01F 37/00 (2006.01)
CPC H01F 27/06 (2013.01) [H01F 27/022 (2013.01); H01F 27/24 (2013.01); H01F 27/30 (2013.01); H01F 27/324 (2013.01); H01F 37/00 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A reactor comprising:
a coil having a winding portion;
a magnetic core that is disposed inside and outside the winding portion; and
a case that houses an assembly including the coil and the magnetic core,
wherein the magnetic core includes a plurality of core pieces that are assembled so as to form a closed magnetic circuit,
the core pieces include two outer core pieces that include a portion disposed outside the winding portion,
the case includes, on an inner wall surface thereof, a first opposing face and a second opposing face that are respectively opposed to outer edge faces of the outer core pieces, and includes a case inclined surface that is provided on at least one of the first opposing face and the second opposing face,
the case inclined surface is inclined such that a distance between the first opposing face and the second opposing face decreases from an opening side of the case toward an inner bottom face of the case, and
a core inclined surface is provided on the outer edge face side of the outer core piece, and is in surface contact with the case inclined surface.